Session N2: Optical Lattices

10:30 AM–12:30 PM, Thursday, June 7, 2012
Room: Grand Ballroom GF

Chair: Ken O'Hara, Penn State University

Abstract ID: BAPS.2012.DAMOP.N2.8

Abstract: N2.00008 : Preparation of two-particle total hyperfine spin-singlets via spin-changing interactions

11:54 AM–12:06 PM

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Authors:

  Sungkit Yip
    (Institute of Physics, Academia Sinica)

  Chao-Chun Huang
    (Institute of Physics, Academia Sinica)

  Ming-Shien Chang
    (IAMOP, Academia Sinica)

For (hyperfine-)spin-1 or spin-2 bosons in a one-dimensional optical lattice in the regime of one particle per site, we have shown [1] that there is a large (interaction) parameter regime where the system has dimerized ground states. Using a period-two superlattice, these dimerized states can be adiabatically transformed to a collection of singlet pairs, or vice versa. Here we describe, starting from two hyperfine spin-1 or 2 particles both with m{\_}F = 0, how spin-changing dynamics under the influence of spin dependent interaction and quadratic Zeeman field can generate two-particle singlets, thus allow us to in principle create these exotic dimerized states. These spin-1 or 2 singlet pairs may also have quantum information science applications. \\[4pt] [1] Pochung Chen,et al, Phys. Rev. A 85, 011601(R) (2012)

To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2012.DAMOP.N2.8